#include<stdio.h>
int main()
{
	int year;
	printf("please enter a year\n");
	scanf("%d",&year);
	if((year%4==0)&&(year%100!=0)||(year%400==0))
		{
			printf("%d is a leap year\n",year);
		}
	else
		{
			printf("%d is ont a leap year\n",year);
		}
	return 0;	
} 
